body {
    margin: 0 auto;
    width: auto !important;
    width: 1100px;
    min-width: 800px;
    max-width: 1920px;
    background: #1e2225;
}

div, ul, ol, li, h1, h2, h3, h4, h5, h6, img, dl, dd, dt, p {
    margin: 0px auto;
    padding: 0px;
}

img {
    border: 0px;
    display: block;
    border: 0px;
}

/*ke gong yong de ul li geshi*/
.dropdown, .footerlist, .main_index1, .main_index2, .piclist, .content_g, #main, .main_form, .content_fontw, .content_fontb, .content_fontin, .content_fontformlist {
    height: auto !important;
    height: 25px;
    min-height: 25px;
    overflow: hidden;
}

ul, ol, dl {
    list-style: none;
}

li, dd, dt {
    list-style: none;
    text-align: left;
}

#main, #main_index, .main_form {
    /*float: left;*/
    width: 100%;
    background: #fff;
}

#main_nobanner {
    padding-top: 131px;
    background: #1e2225;
}
<!-- header-- >
#mainnav, .dropdownmain, .nav2 {
    width: auto !important;
    width: 800px;
    min-width: 800px;
    overflow: hidden;
    position: relative;
}

#header {
    width: 100%;
    background: url(../themes/default/topbg_3.png) repeat-x bottom;
    z-index: 200;
    height: 130px;
    border-bottom: 1px solid #787878;
    min-width: 800px;
    max-width: 1920px;
}

#headercenter {
    margin: 0px auto;
    height: 90px;
    position: relative;
    top: 0px;
    left: 0px;
    background: #fff;
}

#mainnav {
    height: 100%;
}

    #mainnav ul {
        padding-left: 28%;
    }

        #mainnav ul li {
            display: inline;
        }

            #mainnav ul li a {
                float: left;
                display: block;
                line-height: 90px;
                width: 19%;
                text-align: center;
            }

                #mainnav ul li a:hover, #mainnav ul li a.mainnav_in {
                    background: url(../themes/default/topbg_1.png) repeat-x bottom;
                }


.top_logo {
    position: absolute;
    left: 5%;
    top: 0px;
    height: 50px;
    padding-top: 20px;
    width: 220px;
    z-index: 100;
}

    .top_logo img {
        height: 100%;
        width: auto;
    }

.top_search {
    position: absolute;
    right: 5%;
    top: 0px;
}

    .top_search a {
        display: block;
        width: 30px;
        height: 30px;
        margin-top: 30px;
        background: url(../themes/default/top_search.png) no-repeat center center;
    }

        .top_search a:hover {
            background: #3c4043 url(../themes/default/top_search_in.png) no-repeat center center;
        }


/*dropdown */
.dropdown {
    z-index: 100;
    position: absolute;
    top: 90px;
    left: 100px;
    width: 56%;
}

    .dropdown ul {
    }

        .dropdown ul li {
            float: left;
            width: 24%;
        }

            .dropdown ul li a {
                display: block;
                width: 100%;
                text-align: center;
                line-height: 40px;
                padding: 0px 0px;
                margin: 0px 0px;
            }

                .dropdown ul li a:hover {
                    background: #000;
                }


.indexbanner {
    display: block;
    background: #333;
    height: auto;
    position: relative;
    z-index: 1;
    padding-top: 131px;
}

    .indexbanner img {
        width: 100%;
        height: auto;
    }

* {
    padding: 0px;
    border: 0px;
    margin: 0px;
}

ul {
    list-style: none;
}

.slideBox {
    /*margin: 50px auto;
    width: 300px;
    height: 480px;*/
    /*box-shadow: 2px 2px 10px #C38DD4;
    border-radius: 20px;*/
    /*position: relative;*/
    overflow: hidden;
    display: block;
    background: #333;
    height: auto;
    position: relative;
    z-index: 1;
    padding-top: 131px;
}

    .slideBox ul {
        position: relative;
        width: 3400px;
    }

        .slideBox ul li {
            float: left;
            /*width: 300px;
            height: 480px;*/
            position: relative;
            /*width: 1600px;
            height: 900px;*/
        }

            .slideBox ul li img {
                width: 100%;
                height: auto;
            }

.spanBox {
    /*position: absolute;
    width: 300px;
    height: 20px;
    bottom: 10px;
    left: 80px;*/
    position: absolute;
    bottom: 0px;
    width: 100%;
    text-align: center;
    cursor: pointer;
}

    .spanBox span {
        /*width: 18px;
        height: 18px;
        margin-left: 5px;
        background-color: rgba(201,178,207,1.00);
        float: left;
        line-height: 16px;
        text-align: center;
        text-shadow: 2px 2px 2px #C5EBF0;
        font-family: cabin-sketch;
        font-size: 15px;*/
        width: 10px;
        height: 10px;
        cursor: pointer;
        display: inline-block;
        background: #ddd;
        margin: 5px 0px 3px 5px;
        opacity: 0.8;
    }

.slideBox .spanBox .active {
    /*background-color: rgba(155,83,244,0.79);*/
    background: #afecff;
    /*border: solid 1px #BEEBEC;*/
    /*border-radius: 4px;*/
}

.prev {
    position: absolute;
    left: 0px;
    top: 320px;
    float: left;
    border-left: solid 1px rgba(251,245,246,1.00);
    opacity: 0.5;
}

.next {
    width: 15px;
    height: 50px;
    position: absolute;
    right: 0px;
    top: 320px;
    float: right;
    border-right: solid 1px rgba(245,237,237,1.00);
    opacity: 0.5
}


.banner_control {
    position: absolute;
    bottom: 0px;
    width: 100%;
    text-align: center;
    cursor: pointer;
}

    .banner_control a {
        width: 10px;
        height: 10px;
        cursor: pointer;
        display: inline-block;
        background: #ddd;
        margin: 5px 0px 3px 5px;
        opacity: 0.8;
    }

        .banner_control a.active {
            background: #afecff;
        }

/*footer*/

#footer { 
    display: block;
    background: #1e2225;
    height: 200px;
    padding: 15px 0px 3px 0px; 
}

#footercenter {
    width: 90%;
    padding: 30px 5% 0% 5%;
}

.footerlist {
    float: left;
    width: 15%;
}

    .footerlist ul {
    }

        .footerlist ul li {
            display: block;
            width: 100%;
            line-height: 24px;
        }

            .footerlist ul li a {
                line-height: 24px;
            }

            .footerlist ul li.footertitle {
                padding-bottom: 18px;
            }


/*index*/
#main {
    min-height: 500px;
}

.indextitle {
    float: left;
    width: 100%;
    line-height: 90px;
    text-align: center;
}

.main_index1, .main_index2 {
    width: 88%;
    margin: 0% 6%;
}

.main_index1 {
    border: 1px solid #c4c4c4;
}

    .main_index1 ul {
        width: 100%;
        height: auto;
    }

        .main_index1 ul li {
            float: left;
            width: 25%;
            position: relative;
        }

            .main_index1 ul li a {
            }

                .main_index1 ul li a img {
                    width: 100%;
                    height: auto;
                }

.index_classify1font, .index_classify2font {
    position: absolute;
    width: 99.1%;
    padding: 17px 0px;
    margin: 0px 0.5% 1px 0.5%;
    z-index: 10;
    bottom: 0;
    left: 0;
    text-align: center;
    text-transform: uppercase;
    color: #3b3c3e;
}

.main_index1 ul li a:hover .index_classify1font {
    background: #333333;
    color: #fff;
}

.main_index1 ul li a:hover .index_classify2font {
    background: #fff;
    color: #3b3c3e;
}

.main_index2 {
    padding-bottom: 50px;
}

.main_index2_left {
    float: left;
    width: 50%;
    padding-top: 10px;
}

    .main_index2_left img {
        width: 100%;
        height: auto;
    }

.main_index2_right {
    float: left;
    width: 45%;
    padding-left: 5%;
    text-align: left;
    line-height: 37px;
}



/*banner*/


.banner_product, .banner_goods, #banner, .classify_w, .classify_b {
    float: left;
    width: 99%;
    height: 434px;
    padding: 8px 0.5%;
    margin-top: 131px;
    background: #000;
}

.banner_product {
    height: 480px;
}

#banner {
    float: left;
    width: 100%;
    height: 420px;
    padding: 0px;
    margin-bottom: 0px;
    background-color: #000;
    background-position: center center;
    background-size: auto 100%;
    background-repeat: no-repeat;
}



.banner_left_picbg, .classify_pic {
    background-color: #000;
    background-position: center center;
    background-size: auto 100%;
    background-repeat: no-repeat;
}

.banner_goods {
    margin-bottom: 8px;
}


.banner_left_picbg, .banner_left_pic, .classify_pic {
    float: left;
    display: block;
    height: 100%;
    width: 51%;
}

.banner_right, .banner_right_button, .classify_font {
    float: right;
    height: 98%;
    width: 39%;
    padding: 0% 5% 0% 5%;
    display: table;
}

.banner_product_font, .banner_goods_font, .banner_font, .classify_fontin, .banner_contact {
    width: 80%;
    display: table-cell;
    vertical-align: middle;
    text-align: center;
}

    .banner_product_font h2, .banner_goods_font h2, .banner_font h2, .classify_fontin h3 {
        line-height: 40px;
        padding-bottom: 37px;
    }

    .banner_goods_font h3, .classify_fontin p, .banner_contact h3 {
        line-height: 36px;
    }

    .banner_product_font h3 {
        line-height: 42px;
    }

    .banner_font h2 {
        padding-bottom: 27px;
        padding-right: 15%;
    }

.banner_goods {
    height: 550px;
}

.banner_left_pic {
    width: 50%;
    height: 530px;
    background-color: #fff;
}

    .banner_left_pic img {
        width: auto;
        height: 100%;
    }

.banner_right_button {
    background: #000;
    width: 40%;
    padding: 0% 5% 0% 5%;
}

.banner_goods_more {
    margin: 100px 0% 5% 0%;
}

    .banner_goods_more a {
        padding: 8px 50px;
    }

.banner_contact {
}

    .banner_contact h2 {
        line-height: 30px;
        padding-bottom: 25px;
    }

    .banner_contact h3 {
        line-height: 30px;
        padding-bottom: 40px;
    }


.classify_w, .classify_b {
    margin-top: 0;
    height: 430px;
    padding: 9px 0.5%;
}

.classify_w {
    background: #fff;
}

.classify_font {
    width: 50%;
    padding: 0;
}

.classify_fontin {
}

    .classify_fontin h3 {
    }

    .classify_fontin p {
    }

.classify_pic {
    float: right;
    width: 50%;
}

.classify_w .classify_pic {
    background-color: #f1f1f1;
}

.classify_b .classify_pic {
    background-color: #fff;
}



/*button_title*/
.more, .submit {
    float: left;
    width: 100%;
    text-align: center;
    margin: 10px 0px 20px 0px;
}

.submit {
    margin: 25px 0px 40px 0px;
}

.button_w, .button_b {
    display: inline-block;
}

    .button_w a, .button_b a, .botton_content_fontin a {
        display: block;
        padding: 8px 50px;
    }

    .button_w a, .banner_goods_more a, .searchagain a {
        background: #fff;
    }

    .button_b a, .botton_content_fontin a {
        background: #1e2225;
    }

        .button_w a:hover, .button_b a:hover, .banner_goods_more a:hover, .searchagain a:hover, .botton_content_fontin a:hover {
            background: #3c4043;
        }

.title_white, .title_black, .nobannertitle, .title_g {
    float: left;
    width: 100%;
    line-height: 70px;
    text-align: center;
}

.title_g {
    line-height: 50px;
    padding-bottom: 10px;
}

.submit .button_b a {
    padding: 8px 100px;
}

.nobannertitle {
    width: 94%;
    padding: 131px 3% 0px 3%;
    background: #1e2225;
}

    .nobannertitle h3 {
        float: left;
        background: url(../themes/default/arrow_right.gif) no-repeat left center;
        padding-left: 15px;
    }

.searchagain {
    float: right;
    padding: 20px 0px 0px 0px;
}

    .searchagain a {
        display: block;
        padding: 0px 30px;
        line-height: 30px;
    }

        .searchagain a:hover {
        }

/*productpic*/
.content_g {
    float: left;
    width: 100%;
    background: #f1f1f1;
    padding-top: 10px;
}

.contentinfo {
    float: left;
    line-height: 20px;
    width: 96%;
    padding: 0px 2% 12px 2%;
}

.contentinfo_name, .contentinfo_right, .bootstrap {
    float: left;
    background: url(../themes/default/arrow_right.gif) no-repeat left center;
    padding: 0px 20px 0px 15px;
}

.contentinfo_right {
    float: right;
    padding-right: 0px;
}

    .contentinfo_name a, .contentinfo_right a {
    }

.bootstrap {
    width: 95%;
    line-height: 12px;
    padding: 0px 0px 5px 15px;
    background-position: 2px 2px;
}

    .bootstrap a {
    }

.piclist {
    float: left;
    width: 100%;
    padding: 0% 0% 1.2% 0%;
}

    .piclist ul {
    }

        .piclist ul li {
            float: left;
            width: 23.5%;
            margin-left: 1.2%;
            position: relative;
        }

            .piclist ul li a {
                padding-bottom: 20px;
            }

                .piclist ul li a img {
                    width: 100%;
                    height: 100%;
                    padding-bottom: 4%;
                    background: #fff;
                }

                .piclist ul li a h3 {
                    display: block;
                    position: absolute;
                    bottom: 0px;
                    left: 0px;
                    width: 100%;
                    line-height: 18px;
                    text-align: center;
                    padding: 15px 0px;
                }

                .piclist ul li a:hover h3 {
                    background: #000;
                }

            .piclist ul li.picbig {
                width: 48.2%;
                height: auto;
            }

                .piclist ul li.picbig img {
                    padding: 0px 0% 0% 0%;
                    width: 100%;
                    background: #fff;
                }


.piclist_min {
    display: table;
    margin: 0 auto;
    padding-bottom: 30px;
}

    .piclist_min ul {
    }

        .piclist_min ul li {
            float: left;
            width: 180px;
            margin: 0px 15px;
            position: relative;
        }

            .piclist_min ul li a {
                padding-bottom: 20px;
            }

                .piclist_min ul li a img {
                    width: 100%;
                    height: 100%;
                    padding-bottom: 4%;
                    background: #fff;
                }

                .piclist_min ul li a h3 {
                    display: block;
                    position: absolute;
                    bottom: 0px;
                    left: 0px;
                    width: 100%;
                    line-height: 18px;
                    text-align: center;
                    padding: 15px 0px;
                }

                .piclist_min ul li a:hover h3 {
                    background: #000;
                }

.content_goodsparm {
    float: left;
    width: 100%;
    background: #000;
    padding-bottom: 30px;
}

.content_goodsparmfont {
    float: left;
    width: 50%;
}

    .content_goodsparmfont ul {
        float: right;
        padding: 0% 5%;
    }

.content_goodspic {
}

    .content_goodspic img {
        width: 92%;
        height: auto;
        margin-bottom: 20px;
    }

    .content_goodspic p {
        width: 92%;
        padding-bottom: 20px;
        line-height: 28px;
        text-indent: 2em;
    }

.content_fontw, .content_fontb, .content_fontformlist {
    float: left;
    width: 96%;
    padding: 18px 2% 20px 2%;
    position: relative;
}

.content_fontw {
    background: #fff;
}

.content_fontb {
    background: #000;
}

.botton_content_fontin {
    position: absolute;
    bottom: 13%;
    right: 19%;
    text-align: center;
    border: 1px solid #333;
}

    .botton_content_fontin a {
    }

.content_fontin {
}


.content_fontinpic {
    float: left;
    width: 94%;
    height: auto;
    margin: 1%;
}

    .content_fontinpic img {
        width: 100%;
        height: auto;
        padding-top: 20px;
    }

        .content_fontinpic img.logo_contentfontin {
            width: 60%;
            margin-top: 100px;
        }

.content_fontformlist {
    background: #fff;
    width: 97%;
    padding: 25px 1.5% 8px 1.5%;
}

    .content_fontformlist h2 {
        line-height: 50px;
        padding-left: 2.8%;
    }

/*fromlist*/
.main_formlist, .main_formtextarea {
    float: left;
    width: 94%;
    padding: 25px 3% 0px 3%;
}

    .main_formlist, .main_formlist ul li span, .main_formlist ul li select, .main_formlist ul li input, .main_formtextarea span, .main_formtextarea textarea, .main_formtextarea input {
        float: left;
        width: 100%;
    }

.main_formlist {
}

    .main_formlist ul {
    }

        .main_formlist ul li {
            float: left;
            width: 30%;
            margin-right: 2%;
        }

            .main_formlist ul li span, .main_formtextarea span {
                line-height: 30px;
            }

            .main_formlist ul li select, .main_formlist ul li select option, .main_formlist ul li input, .main_formtextarea textarea, .main_formtextarea input {
                border: 0px;
                background: #1e2225;
                height: 30px;
                line-height: 30px;
                padding-left: 10px;
            }

            .main_formlist ul li input {
            }

.main_formtextarea {
    padding: 10px 3% 10px 3%;
}

    .main_formtextarea textarea {
        height: 100px;
    }

    .main_formtextarea input {
    }
